Weed killer



i tion of a modified form of the Patented Apr. '12, 192.7.

UNITED STATES PATENT WILBUB DEAN BARNARD, OF NEENAH, WISCONSIN.

wenn KILLER.

Application flied October 17, 1925. Serial No. 63,074.

This invention relates to weedkillersI Objects of this invention are to provide a weed killer which may be used for the extermination of noxious weeds, such for instance as' dandelions without disturbing the surrounding ground or'the grass growing in the vicinity of the dandelion.

Objects' of this invention are, therefore, to provide a device which will inject a destructive liquid intothe dandelion stem or root, which will open an aperture in the rootin which the intimate' mixing of this solution with the juices of the4 dandelion or other weed is secured, and which will confine the flow of liquid to the exact area desired an apportion the liquid in measured amounts.

A further provide a device whichl is inexpensive to make, which is reliable iii-operation, an which may be easily operated by an unskilled worker.'

Embodiments ofthe invention are shown in the accompanying drawings,.iii which:.

Figure 1 1s a side elevation of the device,

Vsuch view being partly in section.

' Figure 2 is aview showing the device in liquid dischargingposition, such view also being partly in section.

Figure 3 is asectional 3-3 of Figure 2.

-Figure 41s a side elevation partly in secinvention.v Figure 5 `is a view at right angles to- Figure 4. Referring to the drawings, it will be seen that the device comprises 'an elongated drum 1 whose threaded upper eiid is covered by view on the line means of a cap 2 provided with 'a filling end of the tip plug 3 The lower end of the drum 1 is threaded and receivesthe upper threaded `4.- This tip or nose of the device is provided with a tapered portion 5, and with a shoulder 6 adjacent itsup er king 7 etween a 'pair of washers 8 and 9. The lower portion of the tip is apertured, as indicated I at 10, and is'provided with an intermediate shoulder 11 for a purpose "its ends and withi the 'spring appear.

-V rod 12 eiztendsthrough the projects'through the cap 2. It is equipped with an operating handle 13 atfitsl uperA end,jand with'a collar v14 intermediate 15 loosely surrounds the rod 12 and bears at-its'iipper end against the cap 2 an end 19 adapted to d upon the shoulder object of this invention is to I d amply 'from the apertures 17 yout of thetip.

hereinafterA tov ycharge of the device and.

' Figures 4 and 5, a

drum 1. A 'coiled' at its lower end against the collar 14. The

and

apertures 17 which act as measuring chamy bers for the charge.

gure 3 'shows the part of the apparatus with greater detail.

The lower end of the device `is provided with a smaller plungerlShaving a pointed y be vprojected through the lowest end of the tip 5.' It is provided with a valve or gasket 20 held in place by means of a nut 21. This valve 20 is adapted to seat 11, as shown in Figure 1, in the normal position of the apparatus.

It is to be'noted that tlies-pring 15 need not be a very heavy spring but is preferably suicient to support the-drum 1 when it is loaded and to hold the parts in the position shown inFigure 1, under normal conditions.

In using the device it is placed over the dandelion and the pointed end 19 is forced thus cutting a gash inthe root portion thereof and forming an indentation. Therel tion Iand draws the rod 12 upwardly. This permits the liquid collected in the -tip4 to be ldischarged into the cavity made by the pointed end 19. The'position of the parts are then as illustrated in Figure 2.

Further, it will be noted that the'washer or valve 2O limits the upward motion of the valve 12. When the plunger 16 is moved upwardly, the apertures 17 come up above the packing 7. The chamber formed b v lthe intersecting apertures 17 receives its ll of liquid from the barrel 1. When the plunger 16 isv moved downwardly'. so come below the packing, the liquid flows out into the recess inthe `tip- 4 .above the"shouldler` 11. Whenthe arrangement of thisv 'downwardly into the center of the dandelion that the apertures plunger 16` is again raised, the liquid flows In this manner, a measured destructive liquid is delivered at each stroke'ofthe plunger.

In the formof the barrel 22 similar tothe barrel 1 is employed; This barrel is not threaded into either the tip the cap24.l These members 23 and 24 are each provided2 with apertured lugs- 25 and invention shown in portion 23 or d .26, it being noted that the lugs 26 are also provided `with an outwardly extending slot. Tie rods 27 extend between gether. The gasket 28 is' similar to the lgasket 7 previously described, and: the construction of tip 23 is the same as that of the tip 4, as previously described. The upper end of the tube or drum 22 is s'ealed'by means of a gasket 29 carriedwithin the cap 24.

, In this -form of the invention, the cap 24 is provided with a handle 3() and the plun er rod 3-1 isV provided with an additional han le 32, such'handle being positioned within the handle 30, previously described;

It is to be noted further that the spring 33 for lforcing the plunger rod 31 downwardly is seated in a cup-shaped member 34 which is apertured for the passage of the rod 31, and whichy bears against the gasket 29, thus sealing the sliding jointbetween the rod 31 and the cap 24.

In using this device, the entire apparatus is held in position by means of the handle 30 and when it is desired to discharge liqu-id it is necessary merely to lift the handle 32.` If desired, a filling cap may be provided similar to 'that previously described. However, it is found that thedevice may be readily filled by -loqsening the tie bolts 27 and moving the cap. upwardly a slight distance. The operation of the tip 23 is 'identical with that previously described.

Thus a weed-destroyer has-been provided which will form an incision in theweed and which will inject measured quantities of destructive liquid into this aperture formedin.' the, obnoxious Weed, thus oconfining the detructive action to the exact part desired. A

' ,It. will be seen further that the device is very simple in construction and may be cheaply produced. Further, it is to be noted that the device may be veryrapidly and clamp the parts toa tip carried by that the invention may be variously e`m^ bodied andis, therefore to be limited only as claimed. I clalm A weed destroyer comprising an elongated i;

barrel adapted tol contain a destructivey liquid, a reciprocatory /rod mounted within said barrel and projecting fromy its upper end, an operating handle carried -by said rod, a spring urging said rod downwardly,

the lower end of said barrel and having a contracted apertured lower end, a packing' interposed between a portion of said tip and the lower end of said barrel, a measuring plunger connected to the lower end of said rod and adapted to reciprocate within said packing, said measuring plunger Yhaving apertures formed thereinand adapt- "ed to be filled with the destructive liquid from the interior of said barrel when located above saidA packing during the upward reciprocation of saidl plunger, and to deliver such liquid to 'the interior of said tip upon the downward reeiprocation of said plunger, a shoulder' formed inside said tip, a valve carried by said measuring plunger, and adapted to contact with said shoulder when Said measuring plunger isin its'lowermost position, and a pointed end projecting from said measuring plunger and adapted to be projected through the lowerv end of said tip or withdrawn into said tip.

In testimony that I claim the foregoing I have hereunto setmy hand at Neenah, in the county ofVVinnebago consin.

WILBUR DEAN' BARNARD.

yand State of Wis' i 

